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Anthracnose (Monostichella spp.) on Maple, silver (Acer saccharinum)


4 Images
5368473
Paul Bachi
University of Kentucky Research and Education Center

Leaf section with numerous brown spots with small center portion slightly lighter-colored.

5368474
Paul Bachi
University of Kentucky Research and Education Center

Close-up of two leaf spots a ring of darker, slightly raised, spore-producing bodies ("acervuli")

5368475
Paul Bachi
University of Kentucky Research and Education Center

Spore-producing bodies ("acervuli") barely discernable under dark-field observation.

5368476
Paul Bachi
University of Kentucky Research and Education Center

Spores of a species of the fungus Monostichella.